I also highly recommend New Britain General and Dr. Jeffrey Mihalek!
I delivered both my 2 1/2 year old and my 7 month at NBG and luckily had Dr. Mihalek for both deliveries. In fact, it seems they only have an on call system during non-office hours. When I went in at 8pm for my first, I actually had the on-call dr (who was wonderful) coming in to check me out, but by the time I was ready to deliver (8:30am the next morning), Dr. Mihalek was there. It couldn't have worked out any better. However, everyone in the practice seems to be wonderful and have great bedside manner - so even if you end up with the on call dr, you would be in good hands.
My experience at NBG was wonderful as well. The rooms we nice and all singles. All the nurses were very friendly and helpful. And beleive it or not, I really liked the food.
Good luck!